Carl Jung on individuation
According to Jungian psychology, individuation is the process of transforming one’s psyche by bringing the personal and collective unconscious into conscious.Individuation has a holistic healing effect on the person, both mentally and physically.
Individuation is a process of psychological differentiation, having for its goal the development of the individual personality. "In general, it is the process by which individual beings are formed and differentiated; in particular, it is the development of the psychological individual as a being distinct from the general, collective psychology." 
Besides achieving physical and mental health, people who have advanced towards individuation, they tend to become harmonious, mature, responsible, they promote freedom and justice and have a good understanding about the workings of human nature and the universe.